Visual Studio needs to make non-functional changes to this project

Question

I opened a C# project that was created in VS 2010 SP, with VS 2012. A one-way conversion window appeared where I proceeded with the conversion.

Upon completion I got

Answer 1

In our case, removing the following 2 settings elements in the project file that was triggering the upgrade fixed the problem:

Child element of Project/PropertyGroup:

8.0.50727

Child element of Project: